diff --git a/free-programming-books-ua.md b/free-programming-books-ua.md
index f344bb0fd4ad27b7612c8e76d7b189a4295a3ca8..d32f4a19fb7b1b80c2970618df4434daee24abd7 100644
--- a/free-programming-books-ua.md
+++ b/free-programming-books-ua.md
@@ -4,6 +4,7 @@
 * [Java](#java)
 * [Language Agnostic](#language-agnostic)
 * [Python](#python)
+* [Ruby](#ruby)
 
 
 ### Haskell
@@ -24,3 +25,7 @@
 ### Python
 
 * [Пориньте у Python 3](https://uk.wikibooks.org/wiki/Пориньте_у_Python_3) - Марк Пілігрим
+
+### Ruby
+
+* [Маленька книга про Ruby](https://github.com/LambdaBooks/thelittlebookofruby) - Сергій Гіба